The Microsoft Band seems to have come out of nowhere from Redmond, but rumors of such a device in development have been circulating for some time. Indeed, building and researching the health tracker began nearly three years ago through the Xbox team's work on Kinect and motion control. That should tell you that the Band's hardware was in no way rushed.
However, it does seem that Microsoft jumped early on the release of the Band in order to make a splash in the market. In an article on the Seattle Times, Microsoft project manager Matt Barlow commented on the opportunity for the company to jump into the burgeoning health and technology business.
Full story from the WindowsCentral blog...